From £26.58 ( ex VAT £22.15 )
Mohlenhoff Thermoelectric UFH Actuator Head 24 volt 2 Wire (2 core). Adaptor ring for connection on on to the underfloor heating manifolds with M30 thread (which is the most popular underfloor heating manifold thread size).
This Underfloor Heating Actuator Head is made in Germany by Mohlenhoff
2 Core / Wires – Brown and Blue
Operation Voltage 24 V.
Operating Power 1.8 Watts
Switching Current 24 V.
Protection Class 11
Type of Protection P54
Adpator Ring M30 Thread x 1.5 Pitch
Stroke distance 4mm
Ambient Temp. 0-60°C
Storage Temp. 25-65°C
Giacomini Hep2o R478 Underfloor Heating Thermal Actuator 230v 2 wire R478V
The actuators of the R478 series are normally open (NA). They allow them hydraulic supply of the circuits when there is no voltage and they have a cable
with two conductor for the connection to room thermostats or adjustment regulators.
The R478M version has a stroke end micro-switch for driving circulators or zone valves.
The R478V version has varistor for installation on places where the network voltage undergoes sudden changes that could damage the electronic
components.
The R478MV version has either varistor or stroke end micro-switch.
In radiant panel heating and cooling systems, the normally open electrical actuators are to be preferred as they are not supplied for most of the time
involving a sensible electric energy saving.
Description In order to allow an optimal control of the room temperature, combining the energy saving with a high comfort, the use of electrical actuators on distribution manifolds, on radiator valves with thermostatic option, or on fancoil valves is advisable.
The series of R478 electrical actuators is characterised by an absolute quiet operation, long lasting lifetime as it has no mechanism subjected to wear and a sufficiently slow closing to prevent from water hammer phenomenon.
The operation mechanism is made of wax bulbs controlled by low consumption electrical PTC (Positive Temperature Coefficient).
Technical data
• Product in compliance with the Directives B.T. 73/23/CEE and 93/68/CEE and ENEC 03 Certificate
• Product category: “Electrical actuators for assembly on radiators or radiant panel systems”
• Condition in absence of voltage: - Normally Open “NO” (R478)
• Linear motion • Valve working stroke 2,4 mm • Dust protection class 2
• Electrical discharge voltage 4 kV • Electrical enclosure to IP40
• Protection against direct contracts by means of double insulation (Class II) • Supply cable type H05 VV-F, useful length 1,5 m
• Opening time at ambience temperature for R478/R478V/R478M/R478VM versions, 230 V - 24 V ≈ 6 minutes
• Working room temperature: -5÷50 °C • Storage room temperature: -20÷65 °C
• Casing material flame retardant PBT V0-UL94 • Vertical assembly above the valve, or horizontal
• Rapid connection for Giacomini standard • Valve position mechanical indicator
• Micro-switch NC with open valve (R478M - R478MV)
Normally dispatched in 3-4 days
Proud to be Made here in the UK
The Floor Panels will give optimum performance in your Underfloor Heating System, the floor trays allow for a fast installation together with accurate fixing of underfloor heating pipes. The knob system floor tray holds the pipe securely in place by the castellated knobs, the underfloor panel also acts as a pipe fixing template ensuring accurate spacing of pipes allowing a even heat distribution. Our unique floor panels are lightweight and can be easily cut to size to fit any room shape.
The underfloor pipe trays are provided in black, they are neatly overlapped to create a fully interlocking continuous grid floor panel ready for the pipes which can be fixed at 100, 200 & 300 mm pipe centres. This floor panel will interlock with the red floor panels with dimensions of 1.20 x 1.0 m with 100 mm pipe centres.
The underfloor pipes are securely held in position before and during the laying of the floor screed.
Features and Benefits
